Tilt Cylinders - TM-10-3930-630-120053

TM 10-3930-630-12

(4) Check bearing alinement by placing a

(5) Refer to figure 4-10 and connect lift chains

straightedge as shown in figure 4-15. Place straightedge

to carriage.

against stud centerline of all three bearings on both sides

(6) Install backrest (5, fig. 4-11) on carriage

of carriage. No visible gap should be seen between

and secure with screws (1), lockwashers (2), washers (3)

bearings and straightedge.

and nuts (4).

(5) Check to see that upper bearing mounting

(7) Operate lift mechanism and check carriage

screw s tightened to a secure fit.

travel.

g. Installation.

4-37. Tilt Cylinders

(1) Refer to figure 4-1 and install lift forks on

a. General Tilt cylinders, anchored at the

carriage. Place wood under carriage and forks as

frame and attached to the outer mast, extend through

described in c. above. Adjust wood and blocks to bring

the front of the frame. Hydraulic pressure from the

carriage to a straight upright position.

control valve extends or retracts cylinder rods to tilt the

(2) Operate engine and raise mast high enough

mast.

b. Inspection

for inner mast channels to clear carriage bearing.

(1) Operate truck and check tilt cylinder opera-

(3) Move truck to bring inner mast channels

tion. Check degrees of tile (e. below).

directly above and centered over carriage bearings.

(2) Remove floor and toe plates from

Slowly lower inner mast, making sure carriage bearings

operator's compartment.

enter inner mast channels smoothly.

(3) Inspect hoses (fig. 4-16) and fittings at tilt

(4) Install screws (2 and 4, fig. 4-12),

cylinder for leaks and damage.

(3) and spacer (5).

Figure 4-16. Tilt cylinder, removal and installation.

4-25